Lifting table-on-table

ABSTRACT

A lifting table-on-table comprises an upper panel, a lower panel, a bracket component and a base. A plurality of slide rails are symmetrically arranged at the lower side of the upper panel; the base comprises first bottom rods and second bottom rods arranged in parallel; a plurality of slide rails are symmetrically arranged at the inner sides of the first bottom rods; the bracket component comprises two pairs of first brackets and second brackets in an X shape; transmission shafts provided with slide blocks on both ends are installed between the top ends of the first brackets and the second brackets; the slide blocks are installed at the bottom ends of the first brackets and the second brackets through rotating shafts; the bracket component is movably connected between the upper panel and the base through the matching of the slide blocks and the slide rails; and a lifting mechanism is installed between the second brackets and the transmission shaft below the upper panel. Compared with the prior art, in the table-on-table, by arranging the lifting mechanism matched with the handle on the upper panel, the height of the table-on-table can be adjusted quickly and smoothly. By arranging the X-shaped bracket component, the strengthening arms and the supporting rod, the stability of the bracket component is enhanced and the height of the entire bracket component is collaboratively adjusted to simplify the structure of the table-on-table.

TECHNICAL FIELD

The present invention relates to the technical field of lifting tables, and particularly relates to a lifting table-on-table.

BACKGROUND

A lifting table is an office device which is widely popularized and applied in modern office places, and mainly adjusts the height of the table by adjusting the height of table legs, so as to meet the needs of people of different heights. Most of the existing lifting tables can only be used for users to sit and stand. It is bad for health to maintain unreasonable posture and long-term stiffness while sitting and working for a long time, and the psoas and spine may be severely damaged. Therefore, a table-on-table that can allow the user to sit and stand alternately to work appears. However, the existing table-on-table on the market has many defects. For example, in most cases, foot rods are arranged as telescopic sleeve structures; and the length of the foot rods is adjusted through matching of nuts and screws. It is inconvenient to operate when the table is adjusted, and it is difficult to quickly level a tabletop. In addition, for the common table-on-table that can realize vertical lifting, generally, both ends of the table are respectively provided with X-shaped lifting brackets, and lifting push rods are arranged between crossed rods. When a heavy object is put on one side of the table of this design for a long time, the stresses on both ends of the table is uneven and the table is difficult to keep horizontal and the lifting speeds of the lifting push rods on both sides shall be consistent, so that the whole table is complex in structure and high in cost.

SUMMARY

A technical problem to be solved by the present invention is to provide a lifting table-on-table with a more reasonable structure with respect to the problems of the prior art.

Technical solutions adopted to solve the above technical problems by the present invention are as follows:

The lifting table-on-table comprises an upper panel, a lower panel, a bracket component arranged at the lower side of the upper panel, and a base arranged at the bottom of the bracket component. A plurality of slide rails are symmetrically arranged at the lower side surface of the upper panel; the base comprises first bottom rods which are arranged in parallel and second bottom rods arranged at both ends of the first bottom rods; a plurality of slide rails are symmetrically arranged at the inner sides of the first bottom rods; the bracket component is arranged between the upper panel and the base; the bracket component comprises two pairs of first brackets and second brackets which are connected by screw rods in the middles and are in an X shape; transmission shafts are installed between the top ends of the first brackets and the second brackets close to the upper panel; both ends of the transmission shafts are provided with slide blocks; the slide blocks are installed at the bottom ends of the first brackets and the second brackets close to the base through rotating shafts; the bracket component is movably connected between the upper panel and the base through the matching of the slide blocks and the slide rails; a lifting mechanism is installed at the inner side of the second brackets by arranging a fixing part; one end of the lifting mechanism is connected with the fixing part, and the other end is connected with the transmission shaft at the lower side of the upper panel.

Preferably, a control handle is installed at one side of the lower side surface of the upper panel through an installing seat; the lifting mechanism is configured as a self-locking gas spring; and a gas valve tube is installed between the lifting mechanism and the control handle.

Preferably, connecting plates arranged oppositely are installed on the lower side surface of the upper panel; the connecting plate are in

shape; the upper ends of the connecting plates are fixed to the upper panel through screws; the lower panel is installed between the connecting plates through the screws; the lower panel extends out of the plate bodies of the connecting plates outwards to form an increased arc plate; the outer edge of the increased arc plate is configured as an inward concave arc edge; and a baffle plate is arranged on an inner edge.

Preferably, the slide rails are rectangular bodies in which accommodating cavities are arranged; the accommodating cavities of the slide rails located in a vertical direction are oppositely arranged inwards; each slide block comprises a shaft sleeve docked with the transmission shaft and a slide block head adapted to the slide rail; and a plurality of bar-shaped flanges are arranged on the outer circumference of the slide block head.

Preferably, the lower side surface of the upper panel is provided with a limiting seat; a reinforcing arm is installed between the limiting seat and the upper end of the second bracket away from the lower panel through a rotating shaft; and another reinforcing arm is also installed between the lower end of the second bracket and the first bottom rods through the rotating shaft.

Preferably, one side of the upper panel close to the lower panel is provided with a waist type hole-shaped clamping groove; the clamping groove is provided with a clamping groove sleeve; and the bottom of the clamping groove sleeve is uniformly provided with a plurality of through holes.

Preferably, a supporting rod is arranged between the lower ends of the first brackets arranged symmetrically.

Preferably, the second bottom rods are arranged in parallel, and the ends which face the lower panel extend outwards by a section.

Compared with the prior art, the lifting table-on-table of the present invention has the following beneficial effects:

1. By arranging the lifting mechanism matched with the handle on one side of the upper panel, the height of the table-on-table can be adjusted quickly and smoothly to allow the users of different heights to sit or stand alternately to work, and the operation is very convenient.

2. The X-shaped bracket component is arranged between the upper panel and the base; the strengthening arm and the supporting rod installed in the bracket component further enhance the stability of the bracket component and increase the stress value of a tabletop; the lifting mechanism arranged in the middle can collaboratively adjust the height of the entire bracket component to avoid uneven tabletop caused by the difference in the adjustment speed; and moreover, the bracket component is only arranged in the middle, which simplifies the table structure and reduces the cost of the table-on-table.

3. The increased lower panel, the arc edge on the outer side and the clamping groove of the upper panel further improve the use experience of the table-on-table; and meanwhile, the lengthened bottom rods ensure the stability of the table in actual use.

DESCRIPTION OF DRAWINGS

FIG. 1 is a stereographic schematic diagram of a lifting table-on-table of the present invention.

FIG. 2 is a structural schematic diagram of a rear side of a lifting table-on-table of the present invention.

FIG. 3 is a structural exploded diagram of a lifting table-on-table of the present invention.

FIG. 4 is a structural schematic diagram of a bracket component and a base of a lifting table-on-table of the present invention.

Reference signs: 1 upper panel; 11 control handle; 12 slide rail; 13 limiting seat; 14 clamping groove; 2 lower panel; 21 connecting plate; 3 bracket component; 31 first bracket; 32 second bracket; 33 transmission shaft; 331 slide block; 34 supporting rod; 35 reinforcing arm; 4 base; 41 first bottom rod; 42 second bottom rod; 5 lifting mechanism; 51 fixing part.

DETAILED DESCRIPTION

The present invention is further described below in detail in combination with the drawings and embodiments.

As shown in FIG. 1 to FIG. 4, a lifting table-on-table in the present embodiment comprises an upper panel 1, a lower panel 2, a bracket component 3 arranged at the lower side of the upper panel 1, and a base 4 arranged at the bottom of the bracket component 3. A computer screen, a laptop and the like are generally placed on the upper panel 1, and a keyboard, a mouse and the like are placed on the lower panel 2. One side of the upper panel 1 close to the lower panel 2 is provided with a waist type hole-shaped clamping groove 14; a clamping groove sleeve is arranged in the clamping groove 14; the clamping groove sleeve is fixed in the clamping groove 14 through two groups of buckles arranged symmetrically on the outer wall; and the bottom of the clamping groove sleeve is uniformly provided with three through holes for placing a mobile phone, the laptop and the like. In the present embodiment, a lifting mechanism 5 which can be adjusted by one hand is arranged to flexibly control the height of the tabletop to meet different needs.

Four slide rails 12 are symmetrically arranged at the lower side surface of the upper panel 1. Specifically, the slide rails 12 are rectangular bodies in which accommodating cavities are arranged; installing plates are arranged on both sides outside the slide rails 12; the slide rails 12 are fixed to the lower side of the upper panel 1 through matching with screws; and the accommodating cavities of the slide rails 12 located in a vertical direction are oppositely arranged inwards.

Connecting plates 21 arranged oppositely are installed on the lower side surface of the upper panel 1; the connecting plate 21 are in

shape; the upper ends of the connecting plates 21 are fixed to the upper panel 1 through screws; the lower panel 2 is installed between the connecting plates 21 through the screws; the lower panel 2 extends out of the plate bodies of the connecting plates 21 outwards to form an increased arc plate; the outer edge of the increased arc plate is configured as an inward concave arc edge that conforms to a human body; and a baffle plate which prevents articles from sliding out is fixed on an inner edge through the screws.

The base 4 comprises first bottom rods 41 arranged in parallel and second bottom rods 42 arranged on both ends of the first bottom rods 41. Specifically, four slide rails 12 having the same structure as the slide rails 12 of the upper panel 1 are symmetrically arranged at the inner sides of the first bottom rods 41; two second bottom rods 42 are arranged in parallel, and the ends which face the lower panel 2 extend outwards by a section to prevent the table from toppling forward due to uneven front-rear stress.

The bracket component 3 is arranged between the upper panel 1 and the base 4. Specifically, the bracket component 3 comprises two pairs of first brackets 31 and second brackets 32 which are connected by screw rods in the middles and are in an X shape; transmission shafts 33 are installed between the top ends of the first brackets 31 and the second brackets 32 close to the upper panel 1; both ends of the transmission shafts 33 are provided with slide blocks 331; each slide block 331 comprises a shaft sleeve docked with the transmission shaft 33 and a slide block head adapted to the slide rail 12; and a plurality of bar-shaped flanges for increasing the frictional force are arranged on the outer circumference of the slide block head. The slide blocks 331 are installed at the bottom ends of the first brackets 31 and the second brackets 32 close to the base 4 through rotating shafts; and the bracket component 3 is movably connected between the upper panel 1 and the base 4 through the matching of the slide blocks 331 and the slide rails 12.

A supporting rod 34 is arranged between the lower ends of the first brackets 31 arranged symmetrically. The lower side surface of the upper panel 1 is provided with a limiting seat 13; a reinforcing arm 35 is installed between the limiting seat 13 and the upper end of the second bracket 32 away from the lower panel 2 through a rotating shaft; and another reinforcing arm 35 is also installed between the lower end of the second bracket 32 and the first bottom rods 41 through the rotating shaft. The reinforcing arms 35 are arranged so that the first brackets 31 and the second brackets 32 slide consistently to ensure the stability of adjustment.

A control handle 11 is installed at one side of the lower side surface of the upper panel 1 through an installing seat; and the lifting mechanism 5 is installed between the second brackets 32 and the transmission shaft 33 at the lower side of the upper panel 1 through a fixing part 51. Specifically, one end of the lifting mechanism 5 is configured as a limiting head; the upper side of the limiting head is provided with a wire clamping part; and the top end and the fixing part are locked by a stud.

In the present embodiment, the lifting mechanism 5 is configured as a self-locking gas spring; and a gas valve tube (not shown in the figure) is installed between the lifting mechanism 5 and the control handle 11. When the height of the table needs to be adjusted, the handle is pressed with one hand to turn on a gas valve and the panel is propped up lightly. At this moment, the first brackets 31 and the second brackets 32 on both sides move towards each other in opposite directions in the slide rails 12 by means of the slide blocks 331. When the panel rises to an ideal height, the control handle 11 is released to lock the panel. When the table needs to be adjusted downwards, the control handle 11 is pressed again and the panel is pressed down slightly. At this moment, the first brackets 31 and the second brackets 32 on both sides move away from each other in opposite directions in the slide rails 12 by means of the slide blocks 331. When the panel declines to an ideal height, the control handle 11 is released to lock the panel.

The present invention provides a lifting table-on-table. Compared with the prior art, in the lifting table-on-table, by arranging the lifting mechanism matched with the handle on one side of the upper panel, the height of the table-on-table can be adjusted quickly and smoothly. The X-shaped bracket component is arranged between the upper panel and the base, and the strengthening arms and the supporting rod are installed in the bracket component to further enhance the stability of the bracket component and increase the stress value of a tabletop; the lifting mechanism arranged in the middle can collaboratively adjust the height of the entire bracket component to avoid uneven tabletop caused by the difference in the adjustment speed; and moreover, the bracket component is only arranged in the middle, which simplifies the table structure and reduces the cost of the table-on-table.

Finally, it should be noted that the above embodiments are only used for describing the technical solutions of the present invention rather than limitation. Although the present invention is described in detail by referring to the above embodiments, those ordinary skilled in the art should understand that the technical solution recorded in each of the above embodiments can be still amended, or some technical features therein can be replaced equivalently. However, these amendments or replacements do not enable the essence of the corresponding technical solutions to depart from the spirit and the scope of the technical solutions of various embodiments of the present invention. 

1. A lifting table-on-table, comprising an upper panel (1), a lower panel (2), a bracket component (3) arranged at the lower side of the upper panel (1), and a base (4) arranged at the bottom of the bracket component (3), wherein a plurality of slide rails (12) are symmetrically arranged at the lower side surface of the upper panel (1); the base (4) comprises first bottom rods (41) which are arranged in parallel and second bottom rods arranged (42) at both ends of the first bottom rods (41); a plurality of slide rails (12) are symmetrically arranged at the inner sides of the first bottom rods (41); the bracket component (3) is arranged between the upper panel (1) and the base (4); the bracket component (3) comprises two pairs of first brackets (31) and second brackets (32) which are connected by screw rods in the middles and are in an X shape; transmission shafts (33) are installed between the top ends of the first brackets (31) and the second brackets (32) close to the upper panel (1); both ends of the transmission shafts (33) are provided with slide blocks (331); the slide blocks (331) are installed at the bottom ends of the first brackets (31) and the second brackets (32) close to the base (4) through rotating shafts; the bracket component (3) is movably connected between the upper panel (1) and the base (4) through the matching of the slide blocks (331) and the slide rails (12); a lifting mechanism (5) is installed at the inner side of the second brackets (32) by arranging a fixing part (51); one end of the lifting mechanism (5) is connected with the fixing part, and the other end is connected with the transmission shaft (33) at the lower side of the upper panel (1).
 2. The lifting table-on-table according to claim 1, wherein a control handle (11) is installed at one side of the lower side surface of the upper panel (1) through an installing seat; the lifting mechanism (5) is configured as a self-locking gas spring; and a gas valve tube is installed between the lifting mechanism (5) and the control handle (11).
 3. The lifting table-on-table according to claim 1, wherein connecting plates (21) arranged oppositely are installed on the lower side surface of the upper panel (1); the connecting plate (21) are in

shape; the upper ends of the connecting plates (21) are fixed to the upper panel (1) through screws; the lower panel (2) is installed between the connecting plates (21) through the screws; the lower panel (2) extends out of the plate bodies of the connecting plates (21) outwards to form an increased arc plate; the outer edge of the increased arc plate is configured as an inward concave arc edge; and a baffle plate is arranged on an inner edge.
 4. The lifting table-on-table according to claim 1, wherein the slide rails (12) are rectangular bodies in which accommodating cavities are arranged; the accommodating cavities of the slide rails (12) located in a vertical direction are oppositely arranged inwards; each slide block (331) comprises a shaft sleeve docked with the transmission shaft (33) and a slide block head adapted to the slide rail (12); and a plurality of bar-shaped flanges are arranged on the outer circumference of the slide block head.
 5. The lifting table-on-table according to claim 1, wherein the lower side surface of the upper panel (1) is provided with a limiting seat (13); a reinforcing arm (35) is installed between the limiting seat (13) and the upper end of the second bracket (32) away from the lower panel (2) through a rotating shaft; and another reinforcing arm (35) is also installed between the lower end of the second bracket (32) and the first bottom rods (41) through the rotating shaft.
 6. The lifting table-on-table according to claim 1, wherein one side of the upper panel (1) close to the lower panel (2) is provided with a waist type hole-shaped clamping groove (14); the clamping groove (14) is provided with a clamping groove sleeve; and the bottom of the clamping groove sleeve is uniformly provided with a plurality of through holes.
 7. The lifting table-on-table according to claim 1, wherein a supporting rod (34) is arranged between the lower ends of the first brackets (31) arranged symmetrically.
 8. The lifting table-on-table according to claim 1, wherein the second bottom rods (42) are arranged in parallel, and the ends which face the lower panel (2) extend outwards by a section. 